When the sizing kit shows up, tear the bad boy open and grab a ring. Oura recommends wearing the device on either your index finger, middle finger, or ring finger for optimal tracking performance.

You know his coffee order, the way he laughs when he's nervous, and which side of the bed he prefers. Now you're picking out ...

Smart rings are unique in the world of fitness trackers. Instead of wrist-worn devices with large displays and flexible straps, smart rings are more rigid bands made for wear on a finger. As a ...

Try one of these three easy methods to make sure your ring fits perfectly, every time. Fact checked by Isaac Winter Ring sizes are based on the width of a finger measured in millimeters. To get the ...

Aside from the paper ring size chart, one of the most accurate at-home sizing methods is a ring sizer. Ring sizers can be found online for as cheap as $4. The process is quite simple: "you feed one ...

Choosing the right size for a smart ring can be a real headache, with customers needing to use sizing kits before purchasing. Patents reveal that companies are developing smart rings that can ...

By tracking biometrics like temperature, respiratory rate and heart rate, the Oura Ring can catch early signs of physical ...

Examine your fingers. Which is longer? Is it the index finger (the finger you use to point with – technically the second digit, or 2D, counting the thumb), or the ring finger (the fourth digit, or 4D) ...